package com.lihujun;
public class HelloMaven{
    public int add (int n1,int n2){
      return n1+n2;
    }
    public static void main(String args[]){
     	HelloMaven hello = new HelloMaven();
		int res = hello.add(10,20);
		System.out.println("10+20="+res); 
   }
}

